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Finding the Fourth Proportional to 702,959.70, 1,054,439.55 and 323,879.70

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Solution

The fourth proportional to 702,959.70, 1,054,439.55 and 323,879.70 is: 485,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,959.70 : 1,054,439.55 = 323,879.70 : x
  2. Step 2: Convert to fraction form
    702,959.70/1,054,439.55 = 323,879.70/x
  3. Step 3: Cross multiply
    702,959.70x = 1,054,439.55 × 323,879.70
  4. Step 4: Simplify right side
    702,959.70x = 341,511,565,122.14
  5. Step 5: Solve for x
    x = 341,511,565,122.14/702,959.70
  6. Step 6: Final answer
    x = 485,819.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.